A Microsoft Software Engineer has acquaint the after-effects of tests the aggregation performed to the advancement time of Windows 7. Worst case book is that it will yield a bit over 20 hours. But a apple-pie 32-bit install on what Microsoft calls "high-end hardware" should yield alone 30 minutes.
While developing Windows 7, Microsoft ran abounding altered achievement tests to accomplish abiding the operating arrangement was an advance over its predecessors. One of the tests focused on advancement performance: Microsoft capital to accomplish abiding that an advancement from Vista SP1 to Windows 7 was aural a 5 percent beginning faster than an advancement from Vista SP1 to Vista SP1. Microsoft gave three affidavit for application the Vista SP1 to Vista SP1 advancement as a baseline instead of Windows XP to Vista:
* Windows XP is a awfully altered operating arrangement compared to Vista and an advancement from Windows XP -> Vista would not be a acceptable allegory with Vista -> Windows 7
* Windows XP did not abutment 64-bit upgrades and we capital to clue 64-bit advancement achievement as able-bodied as 32-bit upgrades for Windows 7
* Vista SP1 -> Vista SP1 is a accurate advancement aisle that contest all advancement cipher (this advancement is frequently acclimated by Product Abutment Services for a adjustment scenario)
The metric acclimated was absolute advancement time beyond altered user profiles (with altered abstracts set sizes and amount of programs installed) and altered accouterments profiles. According to the analysis after-effects that Chris Hernandez, a Microsoft Software Engineer, acquaint on his blog, Redmond managed to get the Windows 7 advancement time to be faster or according aural the 5 percent beginning to the Vista SP1 advancement time.
The better affair that stands out about this blueprint is the actual ample ambit of the advancement time: from 30 account to 1,220 minutes. That additional acute is not a typo: Microsoft absolutely did time an advancement that took 20 hours and 20 minutes. That's with 650GB of data, 40 applications, on mid-end hardware, and during a 32-bit upgrade. We don't even wish to apperceive how continued it would yield if Microsoft had agitated accomplishing the aforementioned analysis with low-end hardware.
The added absorbing point account acquainted is that the 32-bit advancement is faster on a apple-pie install than a 64-bit upgrade, behindhand of the accouterments configuration, and is faster on low-end hardware, behindhand of the Abstracts Profile. In the added six cases, the 64-bit advancement is faster than the 32-bit ugprade.
We consistently acclaim a apple-pie accession over assuming an advancement installation . It's the best way to abstain lots of problems with a new operating system. Now we've got addition acumen to accomplish the recommendation: in assertive cases it may just save you a ton of time, even with abetment up and reinstalling applications.